Re: Discussion on How PIR JSON Is Currently Utilized in XDP2

Hi Tom,

Thank you for the clarification. I=E2=80=99ll be looking forward to the
upcoming XDP2 updates.

Best,
Matheus


Em seg., 8 de dez. de 2025 =C3=A0s 16:18, Tom Herbert <[email protected]>=
 escreveu:
>
> +felipe
>
> On Sun, Dec 7, 2025 at 11:34=E2=80=AFAM Matheus Freitas Martins
> <[email protected]> wrote:
> >
> > Hello everyone,
> >
> > I am a Master=E2=80=99s student doing research on programmable networki=
ng, and
> > I=E2=80=99ve been experimenting with XDP2 (pir-dev branch) and the P4C =
fork
> > (pil branch). I understand that the project is still under active
> > development, but I=E2=80=99d like to clarify what is currently possible=
 to do
> > with the PIR JSON generated from a P4 program.
> >
> > After reading  'README . pil . md' in  'xdp2-dev/p4c', I was able to us=
e
> > 'p4c-pna-pil' to produce a PIR '.json' file from a P4 (PNA) program.
>
> Cool!
>
> > My questions are:
> >
> > - Does the PIR JSON currently have any practical use in the XDP2
> > toolchain, or is it mainly an intermediate representation for future
> > backends?
>
> There is backend compiler support we have not yet released. The intent
> is that the PIR will be integrated into compilers as parser IR.
> >
> > - Is there any existing component, example, or workflow that consumes
> > this PIR JSON today?
> >
> > - If there is a recommended way to experiment with or validate the PIR
> > output at the current stage, could you point me to it?
>
> That's pending work.
>
> Thanks,
> Tom
>
> >
> >
> > Best regards,
> > Matheus
> >